diff --git a/src/hb-cairo-utils.cc b/src/hb-cairo-utils.cc
index 10a811bdf..4c2a4cbd8 100644
--- a/src/hb-cairo-utils.cc
+++ b/src/hb-cairo-utils.cc
@@ -526,8 +526,8 @@ _hb_cairo_add_sweep_gradient_patches1 (float cx, float cy, float radius,
       C0 = _hb_cairo_sum (A, _hb_cairo_scale (U, _hb_cairo_dot (_hb_cairo_difference (p0, A), p0) / _hb_cairo_dot (U, p0)));
       C1 = _hb_cairo_sum (A, _hb_cairo_scale (U, _hb_cairo_dot (_hb_cairo_difference (p1, A), p1) / _hb_cairo_dot (U, p1)));
 
-      patch.c0 = _hb_cairo_sum (center, _hb_cairo_scale (_hb_cairo_sum (C0, _hb_cairo_scale (_hb_cairo_difference (C0, p0), 0.33333)), radius));
-      patch.c1 = _hb_cairo_sum (center, _hb_cairo_scale (_hb_cairo_sum (C1, _hb_cairo_scale (_hb_cairo_difference (C1, p1), 0.33333)), radius));
+      patch.c0 = _hb_cairo_sum (center, _hb_cairo_scale (_hb_cairo_sum (C0, _hb_cairo_scale (_hb_cairo_difference (C0, p0), 0.33333f)), radius));
+      patch.c1 = _hb_cairo_sum (center, _hb_cairo_scale (_hb_cairo_sum (C1, _hb_cairo_scale (_hb_cairo_difference (C1, p1), 0.33333f)), radius));
 
       _hb_cairo_add_patch (pattern, &center, &patch);
 
diff --git a/test/api/test-paint.c b/test/api/test-paint.c
index 84258c2cc..480f8bf83 100644
--- a/test/api/test-paint.c
+++ b/test/api/test-paint.c
@@ -326,7 +326,7 @@ typedef struct {
 static paint_test_t paint_tests[] = {
   /* COLRv1 */
   { NOTO_HAND,   0.,  10,   0, "hand-10" },
-  { NOTO_HAND,   0.2, 10,   0, "hand-10.2" },
+  { NOTO_HAND,   0.2f,10,   0, "hand-10.2" },
 
   { TEST_GLYPHS, 0,    6,   0, "test-6" },   // linear gradient
   { TEST_GLYPHS, 0,   10,   0, "test-10" },  // sweep gradient
@@ -351,8 +351,8 @@ static paint_test_t paint_tests[] = {
   { BAD_COLRV1,  0,  154,   0, "bad-154" },  // recursion
 
   /* COLRv0 */
-  { ROCHER_ABC, 0.3,  1,   0, "rocher-1" },
-  { ROCHER_ABC, 0.3,  2,   2, "rocher-2" },
+  { ROCHER_ABC, 0.3f, 1,   0, "rocher-1" },
+  { ROCHER_ABC, 0.3f, 2,   2, "rocher-2" },
   { ROCHER_ABC, 0,    3, 200, "rocher-3" },
 };